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KAR-19
TECHNICAL EDUCATION
2007 DESIGN
15 & 18 AUTOMATIC
ICE MAKERS
KUIA15NRH*11 KUIA18NNJ*11
KUIA15PRL*11 KUIA18PNL*11
KUIA15NLH*11
KUIA15PLL*11
Intoductory Models
* Denotes Color Designation
JOB AID 4317408
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FORWARD This KitchenAid Job Aid “2007 Design 15" & 18" Automatic Ice Makers” (Part No. 4317408), provides the In-Home Service Professional with information on the installation, operation, and service of the 2007 Design 15" & 18" Automatic Ice Makers. For specifi c information on the model being serviced, refer to the “Use and Care Guide,” or “Tech Sheet” provided with the ice maker. The Wiring Diagram and Strip Circuits used in this Job Aid are typical and should be used for training purpose
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TABLE OF CONTENTS Page GENERAL .............................................................................................................................. 1-1 Ice Maker Safety ................................................................................................................ 1-1 KitchenAid Model & Serial Number Designations .............................................................. 1-2 Model & Serial Number Label Location......................................................
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Page DIAGNOSTICS & TROUBLESHOOTING ............................................................................. 6-1 Water And Its Effect On Making Ice ................................................................................... 6-1 Troubleshooting Chart ........................................................................................................ 6-2 Diagnostic Flow Chart For Ice Maker Control Board ......................................................... 6-5 WIRING DIAGRAM &
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GENERAL ICE MAKER SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on the appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.” These words mean: You can be killed or seriously injured if you don’t
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KITCHENAID MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER MODELNUMBER K UI A 15 NR H S 0 INTERNATIONAL SALES IND. OR MARKETING CHANNEL IF PRESENT PRODUCTGROUP K = KITCHENAID PRODUCTIDENTIFICATION UI = UNDERCOUNTER ICE MAKER MERCHANDISINGSCHEME A = ARCHITECT C = CULINARY & ARCHITECT II S = STANDARD O = OUTDOOR V = SIGNATURE SERIES CAPACITY/SIZE/SERIES/CONFIGURATION 15 = 15" WIDE 18 = 18" WIDE FEATURES PR = PUMP, RIGHT HAND DOOR SWING PL = PUMP, LEFT HAND DOOR SWING PN = PUMP, NON-REVERSIBLE DOOR
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MODEL & SERIAL NUMBER LABEL LOCATION The Model/Serial Number label location is shown below. Model & Serial Number Location 1-3
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SPECIFICATIONS AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 to 127 VAC (rated 115VAC), 60 Hz Amperage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 Amps (max) Minimum Circuit Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Amps Ice Production per 24 hours (Approximate) Water Temperature Ambient Temperature 60⋅F (
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INSTALLATION INFORMATION ELECTRICAL SUPPLY REQUIREMENTS IMPORTANT: If this product is connected to a GFCI (Ground Fault Circuit Interrupter) pro- W WA AR RNING NING tected outlet, nuisance tripping of the power supply may occur, resulting in the loss of cool- ing. Ice quality may be affected. If nuisance tripping has occurred, and if the condition of the ice appears poor, dispose of it. Recommended Grounding Method Electrical Shock Hazard For personal safety, this appliance must be Plug in
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WATER SUPPLY AND DRAIN CONNECTIONS 8. Use 1/4" (6.35 mm) O.D. copper tubing CONNECTING THE WATER LINE for the cold water supply and: 1. Turn off the main water supply. a) Measure from the connection at the 2. Turn on the nearest faucet and allow it to back of the ice maker to the cold water run long enough to clear line of water. pipe. 3. Find a 1/2"(12.70 mm) to 1-1/4" (3.18 b) Add an extra 36" (91.4 cm) to ensure cm) vertical cold water pipe near the ice that you have the proper le
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11. Thread the nut onto the coupling at the SIDE VIEW end of the copper tubing. Tighten the nut by hand. Then tighten it with a wrench two more turns. Do not overtighten. 15" Models CONNECTING THE DRAIN Gravity Drain System 18" Models Connect the ice maker drain to your drain in accordance with all state and local codes and ordinances. If the ice maker is provided with a gravity drain system, use the following guidelines when installing the drain lines. This will avoid water from fl ow
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Drain Pump System (On Some Models) 1. Plug in ice maker or reconnect power. Connect the ice maker drain to your drain in accordance with the International Plumbing W WA AR RNING NING Code and any local codes and ordinances. NOTE: If the drain hose becomes twisted and Excessive Weight Hazard water cannot drain, the ice maker will not oper- ate. Use two or more people to move and Connecting the Drain install ice maker. After ensuring that the drain system is ad- Failure to do so can res
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THEORY OF OPERATION OPERATING SYSTEMS There are three operating systems in the ice There are two very important additions to the maker: refrigeration system in the ice maker: the Hot Gas Valve, and the Condenser Accumulator • Refrigeration System Tube. The components operate as follows: • Water System • Electrical System • Hot Gas Valve - Allows high pressure refrigerant gas to bypass the condenser REFRIGERATION SYSTEM and fl ow through the condenser accu- The refrigeration system in the ic
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A water softener, or poly phosphate feeder, will WATER SYSTEM not cure all of the problems associated with hard The water system provides: water, but they can be used to reduce scale • Fresh water for ice production buildup in the ice maker. NOTE: Some poly • Water recirculation as ice is produced phosphate feeders will cause a slime buildup • Water removal after ice is produced in the water system when the water supply has a low mineral content. The water system circulates water to freez
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WATER SYSTEM COMPONENT LOCATIONS Water Distributor Evaporator Water Level Sensor Water Return Tube Water Recirculation Pump Reservoir Pan Manual Drain Reservoir Drain Pump Drain Overfl ow Water Valve Outlet Tube Bin Drain Measured Fill Water Inlet Valve From Water Supply 3-3
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ELECTRICAL SYSTEM The ice maker’s electrical system provides power for the refrigeration and water systems, and controls the operation of each component. 3-4
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OPERATIONAL MODES During the Freeze mode, some of the hot gas There are four main operational modes for the that is in the condenser accumulating tube, ice maker (more detailed operation is found in condenses to a liquid, and remains in the ac- the fl ow chart on page 6-5): cumulating tube. • Freeze During the later stages of the Freeze mode, as • Harvest the ice slab forms on the evaporator freezing • Clean plate, some of the refrigerant passing through • Service (Diagnostics) the evap
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The electronic control board operates the vari- HARVEST MODE ous components and systems in the ice maker Electrical System for each of the Freeze and Harvest modes. When the water level in the reservoir drops CLEAN MODE below the water level sensor it signals the electronic control to terminate power to the Electrical System condenser fan, and then the water recirculating The electronic control board operates the pump. The reservoir drain pump is activated various components and systems du
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Diagnostic Chart After pressing any button to enter manual diagnostics all LEDs will illuminate for 5 seconds. The controls will then automatically move to the fi rst component. Order Component On/Off LED Service LED Clean LED Feature Light (for (On for some (Off for some some models) models) models) 1 Entry into Test ON ON ON ON Mode 2 Bin Thermistor ON Solid--OK OFF OFF OFF 2 blinks--Open 4blinks--Short 3 Evaporator OFF OFF ON Solid--OK OFF Thermistor 2blinks--Open 4blinks--Short 4a Water Val
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MODELS WITH INTERNAL DRAIN PUMPS The power cord on the internal drain pump is into the pump inlet, and then into the drain pump connected to a 120 VAC wall outlet. The ice chamber. As the water level rises, it bridges the maker is then connected to the 120 VAC outlet “full” contacts, and the pump starts to run. The on the drain pump. If the drain pump fails, or if pump discharges the water through the outlet the drain becomes blocked, power is shut off and the check valve. When the “full” c
